Contact UsYou can send your comments or questions to the US DOT and find answers through our frequently asked questions site. A team of information specialists answer every message sent from this home page. The information specialists process mail Monday-Friday (9:00 a.m. – 5:00 p.m. Eastern Time), except on federal holidays. Mail sent late Friday or over the weekend will not be reviewed until the following Monday. We try to respond to you within 4 business days. Correspondence to the Department may be sent to:
Directions to the U.S. Department of Transportation Headquarters Please note: Correspondence must be addressed to a specific administration within the U.S. Department of Transportation, or the U.S. Postal Service will not be able to deliver it. A list of DOT administrations and their various responsibilities can be found on the DOT Agencies webpage. If you are not sure which administration to contact, feel free to e-mail us. And you can call us at the General Information Main Switchboard at: 202-366-4000 Monday through Friday between 8:30 am and 5:30 pm EST excluding Federal Holidays. Deaf, hard of hearing, and speech impaired callers may contact the general information switchboard using the Federal Relay Services:
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